I’ve searched and read a few of threads on which pads to use but haven’t seen much on the differences between pads.
Help me out here, do you mean,
1: What's the difference between the types of foam pads as in foam cutting, foam polishing, foam finishing and foam waxing?
Or do you mean,
2: What's the difference between Lake Country, Buff and Shine, Meguiar's, Griot's, Adams, 3D, Chemical Guys, etc. pads?
The first question is easy, you have a scale of aggressiveness or
ABRASIVENES from the most to the least. For example a foam cutting pad will be a
LOT more aggressive than a foam waxing pad. The actual
FOAM can be altered by adding different chemicals to the foam to enhance certain characteristics.
In the
BIG PICTURE - unless you want to write an article, write a book or make video sharing lots of technical info about foam pads, that is, if you're searching for information to help you get some pads to buff out a car, then do what I call,
KISS = Keep it Simple Simon
Assuming, (and I hate to assume), but since you didn't say, assuming you want the right pads to buff out a neglected car, then you'll need at a minimum some foam cutting pads and some foam polishing pads. You can tackle just about any project with just these two pads. It's nice to also have some foam finishing pads in case the paint you're working on is soft and mars easy but in most cases a foam "polishing" pad will finish out on most paints.
What's more important is the STUFF
touching the paint and that's the compounds, polishes and cleaner/waxes. It is these things that have
ABRASIVES in them and it is the abrasives that
TOUCH the paint first, not the foam. If you use junk for products you'll get junk for results.
The pads are no where near as important as the abrasive technology as long as you match the type of pad to the process you're performing. If you ask 10 detailers or just detailing enthusiasts, what is the most important thing when it comes to polishing paint, easily 50% of the people you ask will say
TECHNIQUE.
And they are all wrong.
The stock foam pad, is that an actual polishing pad or just the backer?
It
IS a real and usable foam buffing pad. The problem with it is it's so
THICK it won't work very well when it's dry and it won't work at all once it starts to become wet with product. I call this
PAD SATUATION. It's real simple,
- Wet pads don't buff good.
- Thick pads on free spinning tools don't rotate well.
- Thick wet pads don't rotate at all.
Here's my article on this pad from 2012, 7 years ago as I type this reply in 2019
The white foam pad that comes with a Porter Cable Polisher
I purchased several different types of bonnets; microfiber terry cloth, etc. The packages all say foam is the best but I was unable to find additional foam bonnets.
What do you use on your 7424 for polishing?
I can see you're new to using a Porter Cable.
In the old days people used a polisher like the one you see below and when using it they used a variety of different
BONNETS on the foam backing pad. The foam backing pads was NOT used to actually buff on paint but as the interface that held the bonnet.
You can actually see a bonnet on the Chamberlain Orbital Buffer in the picture below. B
ut note all the polishers behind it have foam buffing pads on the backing plate but no bonnets on them.
Here's my article on the above polisher from 2009
TOB = Traditional Orbital Buffer aka The Wax Spreader
What you want to do with your Porter Cable random orbital polisher is to get some simple flat faced foam buffing pads.
Tell me what you're working on and what you're trying to do and I'll do my best to help you to get the right pads.
What you
DON'T want to do is try to buff out a car using bonnets on the Porter Cable polisher. It's not going to work.